Finding the Fourth Proportional to 85,564.74, 118,031.94 and 49,750.79
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Solution
The fourth proportional to 85,564.74, 118,031.94 and 49,750.79 is: 68,628.53
Step by Step Solution
- Step 1: Write the proportion equation
85,564.74 : 118,031.94 = 49,750.79 : x - Step 2: Convert to fraction form
85,564.74/118,031.94 = 49,750.79/x - Step 3: Cross multiply
85,564.74x = 118,031.94 × 49,750.79 - Step 4: Simplify right side
85,564.74x = 5,872,182,260.23 - Step 5: Solve for x
x = 5,872,182,260.23/85,564.74 - Step 6: Final answer
x = 68,628.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.